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--- group_secar2.0 [2018/09/10 15:58]
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+++ group_secar2.0 [2018/09/11 15:18]
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@@ Line 16: / Line 16: @@
 {{ :reaction_kinematics.png?400 |}}
-Reaction summary for <sup>45</sup>V+p→γ+<sup>46</sun>Cr, Ek(<sup>45</sup>V)=135 MeV\\
+Reaction summary for <sup>45</sup>V+p→γ+<sup>46</sup>Cr, Ek(<sup>45</sup>V)=135 MeV\\
 The maximum γ energy is 8.481 MeV. The minimum γ energy is 7.249 MeV.\\
 The maximum <sup>46</sup>Cr energy is **132.634 MeV**. The minimum <sup>46</sup>Cr energy is **131.402 MeV**. The maximum <sup>46</sup>Cr angle is **0.13 degrees**.\\
- SB 0.1 0.001726 0 0.1 0.001726 0 0 0.0047 0 0 0 ;\\
-[[Test|Test]]
+Assume normalized emittance 0.6 π mm mrad provided from ReA3 at 3.0 MeV/u. \\
+Geometric emittance is 0.6/0.08 = 7.5 π mm mrad.\\
+Spot size on the target is ±0.5 mm (full width). Then anglular spread is ±15 mrad.\\
+Adding the effect from the target of 0.13 deg = ±2.26 mrad we get ±17.26 mrad of angular spread:\\
+SB 0.0005 0.01726 0 0.0005 0.01726 0 0 0.0047 0 0 0 ;\\
+{{ :dipole46cr13.png?400 |}}
+**Emittance measurement**\\
+Distance between Q7 center and focal plane is 6.085 m.
+{{ :emittance.png?400 |}}
+Q7 strenght variation:\\
+|B [T]	|Xmax[m]	|ap [m]	|Brho [Tm]	|L [m]	|K|
+|0.02	|2.91E-03	|0.13	|0.8	|0.34	|0.065384615|
+|0.01	|2.27E-03	|0.13	|0.8	|0.34	|0.032692308|
+|0	|1.62E-03	|0.13	|0.8	|0.34	|0|
+|-0.01	|1.20E-03	|0.13	|0.8	|0.34	|-0.032692308|
+|-0.02	|9.08E-04	|0.13	|0.8	|0.34	|-0.065384615|
+|-0.03	|6.23E-04	|0.13	|0.8	|0.34	|-0.098076923|
+|-0.04	|9.54E-04	|0.13	|0.8	|0.34	|-0.130769231|
+|-0.05	|1.60E-03	|0.13	|0.8	|0.34	|-0.163461538|
+|-0.06	|2.26E-03	|0.13	|0.8	|0.34	|-0.196153846|\\
+**Fit of the data to parabola**
+{{ :plot.png?400 |}}
+a = 0.000362572706 \\
+b = 0.0834414129893 \\
+c = 3.506973286e-07\\
+Emittance = 3.045387898578198e-07 = 0.3 π mm mrad

JINA-CEE ION OPTICS SUMMER SCHOOL: JIOSS 2018

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